<?php echo $form->startForm();?>
<?php echo $form->showMessageError('validate_login'); ?>
<br/>
<br/>
<br/>
<br/>
<br/>
<center>
<table>
    <tr>
        <td><?php echo $user_label->show(); ?></td>
        <td><?php echo $user_entry->show(); ?></td>
    </tr>
    <tr>
        <td><?php echo $passwd_label->show(); ?></td>
        <td><?php echo $passwd_entry->show(); ?></td>
    </tr>
    <tr>
        <td colspan="2" align="right"><?php echo $button_entrar->show(); ?></td>
    </tr>
</table>
</center>    
<?php echo $form->endForm(); ?>